linux-kernel - [PATCH 5.18 120/339] bonding: show NS IPv6 targets in proc master info

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Date:   Mon, 13 Jun 2022 12:09:05 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Li Liang <liali@...hat.com>,
        Hangbin Liu <liuhangbin@...il.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.18 120/339] bonding: show NS IPv6 targets in proc master info

From: Hangbin Liu <liuhangbin@...il.com>

[ Upstream commit 4a1f14df55d1e9ecdfa797a87a80131207cbd66f ]

When adding bond new parameter ns_targets. I forgot to print this
in bond master proc info. After updating, the bond master info will look
like:

ARP IP target/s (n.n.n.n form): 192.168.1.254
NS IPv6 target/s (XX::XX form): 2022::1, 2022::2

Fixes: 4e24be018eb9 ("bonding: add new parameter ns_targets")
Reported-by: Li Liang <liali@...hat.com>
Signed-off-by: Hangbin Liu <liuhangbin@...il.com>
Link: https://lore.kernel.org/r/20220530062639.37179-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@...hat.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/bonding/bond_procfs.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c
index cfe37be42be4..43be458422b3 100644
--- a/drivers/net/bonding/bond_procfs.c
+++ b/drivers/net/bonding/bond_procfs.c
@@ -129,6 +129,21 @@ static void bond_info_show_master(struct seq_file *seq)
 			printed = 1;
 		}
 		seq_printf(seq, "\n");
+
+#if IS_ENABLED(CONFIG_IPV6)
+		printed = 0;
+		seq_printf(seq, "NS IPv6 target/s (xx::xx form):");
+
+		for (i = 0; (i < BOND_MAX_NS_TARGETS); i++) {
+			if (ipv6_addr_any(&bond->params.ns_targets[i]))
+				break;
+			if (printed)
+				seq_printf(seq, ",");
+			seq_printf(seq, " %pI6c", &bond->params.ns_targets[i]);
+			printed = 1;
+		}
+		seq_printf(seq, "\n");
+#endif
 	}
 
 	if (BOND_MODE(bond) == BOND_MODE_8023AD) {
-- 
2.35.1